Stephen R. Stone - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Stephen R. Stone is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $52K.
Profile
Stephen R. Stone is a corporate insider at CoastalSouth Bancshares, Inc. (COSO). Stone has reported 4 insider filings with the SEC since 2025. The most recent filing was in April 2026.
| Role | PRESIDENT AND CEO |
|---|---|
| Notability | 20/100 |
Board memberships
- CoastalSouth Bancshares, Inc.
Awards & honors
- Leadership in CoastalSouth Bancshares
- Expansion of banking services in the Lowcountry of South Carolina
Trading Pattern
InsiderAlpha's records for Stephen R. Stone go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $26K (2 buys totaling $52K). The largest single buy on record is $47K of COSO in 2025. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Stephen R. Stone has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- PRESIDENT AND CEO at CoastalSouth Bancshares, Inc. (COSO) - 4 filings, 2025 to 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-29 | COSO | CoastalSouth Bancshares, Inc. | F - Tax withholding / forfeiture | 5.0K | $25.59 | $129K |
| 2026-04-29 | COSO | CoastalSouth Bancshares, Inc. | M - Option exercise | 17.0K | $0.00 | |
| 2026-03-09 | COSO | CoastalSouth Bancshares, Inc. | P - Open-market purchase | 200 | $24.15 | $5K |
| 2025-07-07 | COSO | CoastalSouth Bancshares, Inc. | P - Open-market purchase | 2.2K | $21.50 | $47K |
Most Active Insiders Right Now
Stephen R. Stone has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Joseph Stilwell
- William P. Stiritz
- SUMITOMO MITSUI FINANCIAL GROUP, INC.
- Suva
- SUVRETTA CAPITAL MANAGEMENT, LLC
- Donald William Swanson
- Synchron
- Kevin Tang
Frequently Asked Questions
Who is Stephen R. Stone?
Stephen R. Stone is a corporate insider at CoastalSouth Bancshares, Inc. (COSO). Stone has reported 4 insider filings with the SEC since 2025. The most recent filing was in April 2026.…
Has Stephen R. Stone been buying or selling stock?
Recorded transactions: 2 open-market purchases ($52K) and 0 open-market sales across all tracked filings.
Where can I see all of Stephen R. Stone's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Stephen R. Stone profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.